Math, asked by bawan57, 6 months ago

8x² - 22x -21 =0; x=5,7/2

Answers

Answered by aya2008june06

0

Answer:

ummm I anedd points so this an interview the answerbthjs

Answered by MH99

1

Answer:

x= –3/4 , 7/2

Recheck your answer.

Step-by-step explanation:

8x²-22x-21=0

=> 8x²- 28x+6x -21=0 [middle term]

=> 4x(2x–7) + 3(2x–7)=0

=> (2x–7) + (4x+3)=0

=> x= 7/2 ; x= –3/4

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